Utrecht, Netherlands, February 18, 2010 - Mentor Graphics Corporation (NASDAQ: MENT) today announced a territorial addition for Innofour, based in Almelo, Netherlands, as its new partner for distribution sales in Denmark, Sweden, Norway and Iceland. Innofour will offer all the Mentor main product lines including market leading brands such as the Expedition® Enterprise product, PADS® and HyperLynx® products for PCB design, the ModelSim® product for RTL verification, and the Calibre® product for IC physical verification.

Growth in demand for Electronic Design Automation (EDA) solutions in the regions over the last years has highlighted the need for a strong distribution partner for Mentor Graphics. Selection criteria for the partner were strict, emphasizing both local electronic design industry and EDA technology specific knowledge. Mentor´s leadership in this part of the European market place demands strong motivation from Innofour to further increase Mentor's market share.

"We are very excited about this territorial expansion. Innofour has proved to be an effective and solutions driven distribution partner. New and existing customers will benefit from the attention of a knowledgeable and responsive distributor who has the added advantage of being able to offer complementary products and services to best suit their customer needs", said Nick Halls Western European Regional Sales Manager, Mentor Graphics.

"Innofour has deep roots in the EDA industry with over 60 man years of direct experience in this region", said Peter Bakker, one of the Innofour founders. "We will be providing a highly knowledgeable service to electronic design companies, helping them employ market leading technology solutions effectively to address their challenges."

(Mentor Graphics is a registered trademark of Mentor Graphics Corporation. All other company or product names are the registered trademarks or trademarks of their respective owners.)

About InnoFour

InnoFour was founded to provide tools, technology and methodologies in the area of FPGA, IC and PCB design, with the goal to innovate, shorten the development cycle and to be more predictable. In our portfolio we offer best in class products and solutions to prevail over the design challenges which are faced by the engineers today, such as reduce time to market, increase productivity and produce more competitive products. InnoFour is based in Almelo, The Netherlands, and is a channel partner for Mentor Graphics as well as Omnify Software and DownStream Technologies. For more information please visit our website at www.innofour.com

About Mentor Graphics

Mentor Graphics Corporation (NASDAQ: MENT) is a world leader in electronic hardware and software design solutions, providing products, consulting services and award-winning support for the world’s most successful electronics and semiconductor companies. Established in 1981, the company reported revenues over the last 12 months of about $800 million and employs approximately 4,425 people worldwide. Corporate headquarters are located at 8005 S.W. Boeckman Road, Wilsonville, Oregon 97070-7777. World Wide Web site: www.mentor.com